Grease-cup.



G. W. BOWEN. GREASE CUP. APPLICATION FILED JULY 27, 1911.

Patented Mar. 4, 1913.

WITNESSES:

MENTOR BY W ATTORNEYS enonon w". eownu, or AUBURN, new YORK.

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Specification of Letters Patent.

"Patented lillar. a, 11913.

Application filed July 27, 1911. Serial No, 640,751.

To (ZZZ whom it may concern.

Be it known that I, Grouse W. BOWEN, of Auburn, in the county of Cayugaand State of New York, have invented a new and useful GreaseCup, ofwhich the following is a specification.

This invention has forits object the pro duction of a grease cup whichis particularly simple in construction. economical in manufacture andhighly efficient and durable in use; and it consists in the combinationsand constructions hereinafter set forth and claimed.

in describing this invention reference is had to the accompanyingdrawing in which like charaeters designate corresponding parts in allthe r'iews.

Figure 1 is dVEilllCfll sectional view of one form my grease cup, andFig. 2 is a View similar to Fig. 1 of another form thereof.

This grease cup comprises, generally, a base, a closure for the base, afollower movable toward and from the bottom of the base, and meanscarried by the closure for operating the follower,

1 is the base which is in the form of a receptacle, said base'beingprovided atitslower end with an axially extending nipple 2 by means ofwhich the cup is connected to the part to be lubricated, the hi plehaving a passage 3 therethrough whic communicates with the interior ofthe base 1.

4: is the head of the closure for the base, the closure being also inthe form of a receptacle and having a barrel portion 5 projecting fromthe head 4 into the base 1 and normally terminating near the bottom 6 ofthe base. The closure is externally threaded and turns into internalthreads of the base 1.

In order to prevent grease within the closure from following upwardlybetween the threads of the closure and the cap, the lower end of theclosure engages, and em beds in a packing ring 7 of yielding materiallocate at the bottom 6 of the base 1, The head 4 overlaps the upper edgeof the open end of the base 1, and opposing surfaces of the head andbase are formed with recess and a socket designed to come into alinementwhen the closure approaches the limit of its movement into the base 1,and a spring-pressed locking partis located in the socket and projectstherefrom in position to enter the recess. p

In the illustrated embodiment of my invention the base 1 is formed witha recess or notch 8 in its upper edge said notch decreasing in depthtoward opposite sides of the notch extending through the periphery ofsaid edge and the head is formed with a socket or perforation 9extending through upper and lower surfaces thereof, in which socket thespring-pressed locking part as a ball 10 for entering the notch 8 isarranged, said locking parthaving a rounded lower portion projectingfrom the contiguous part of the head for entering the notch when theperforation 9 is alined therewith, and for coacting with oppositediverging sides of the notch during the turning movement of the closureand thus the locking part moves downwardly into operative position, orrises therefrom by the mere turning movement of the closure.

The spring means acting on the ball 10 preferably consists of a disk 11of resilientmaterial mounted on the head and arranged coaxiallytherewith and with its margin extending across the upper end of theperforation 9, said disk being held at its center and having its marginfree. The disk 11 is usually arranged in a recess 12 located in theupper side of the head l and formed by a marginal annular flange 13extending upwardly from the head 4. Such recess 12 is closed by a disk1% of sheet metal resting againsta seating surface 15 near the upperedge of the flange 13, the disk 14 being held in position by spinningtheupper edge of the fiange13 over on the upper face of the margin of thedisk 14 into a pos1- tion opposed to the seating surface 15, as

clearly seen at 16, Fig. 1.

17isa follower movable between the head 4 and the bottom 6 of the base,said follower engaging the inner circumferential face of the barrelportion 5 of the closure. The means for operating the follower comprisesa threaded stem 18 extending axially through a threaded central openingof the follower 17 and upwardly through the head .4 disks 11 and .14,the stem being held froni e'ndwise movement by an annular thrust bearing19 engaging the bottom of a socket formed in the inner face of the head4, and by a thrust bearingsurface 20 on the outer end of the stem 18,said surface 20 abutting against a washer 21 encircling the stem 18 andresting on the disk 14:. The disk 14 is held from yielding movementtoward the disk 11 by a washer 22 similar to the washer 21, the washer22 encircling the stem 18 I surfaces of the head and the fol.

' '1 l v: I ,1 6 mar a will 300,218 a spring against the can 10. hefollower 17 is held. from turning movement with the stern 1 by suitablecollapsible means interposed between onposin L A.

means being here shown as in the term 0. conical spiral spring fixed atone end 1 the head 4.-

at its other end to the follower 17. i

In order to preventcrushing of the 'spriu: 2 1- or other collapsiblemeans, one of parts provided "with the opposing surfaces between whichsaid spring 24: is interposed, is formed with an annular shoulder projecting toward the other of said opposing surfaces, the annular shoulderbeing concentrio with the spring and of greater diameter than thelargest diameter thereof in order that when the follower l? is movednear: the head t, the spring 24 will be coiled wit-h in the annularshoulder. its shownin l the annular shoulder is provided on head t butas shown in Fig. .2 such shoulder is provided on the follower asindicated at 26. I

In operation, the closure is unscrewed from the base 1 and the handleoperated to move the follower 17 upwardly to a position near the head 4of the closure. lfhe closure is then filled with grease and screwed intothe base 1 until'loclred from turning movement by, the ball 10. thelubricant is used the follower is forced toward the bottom of the baseby turning the handle 23.

What I claim is:

1. A grease cup comprising a base, a closure for the base connectedthereto by screw threads, the base being formed'with a notch, and 'i'heclosure having a head formed with a socket, the movement of the closureserving to bring the socket into alinement with the notch, a lockingpart located in the socket and having a portion thereof projectingbeneath the contiguous part of the head for entering the notch, saidlocking part being movable above said contiguous part and a resilientflattened member mounted on the upper surface of said contiguous part ofthe head and engaging the locking part for yieldingly forcing the sameinto locking position, substantially as and for the purpose set forth.

2. A grease cup comprising a. base, a closure for the base connectedthereto by screw threads, the upper edge of the base being formed with anotch, and the closure having a head overlapping said upper edge andformed with a socket, the movement of the closure serving to bring thesocket into old the disk 11 at its tenterso th its ping the upper edgeof the base, and the base being formed with a notch in its upper edge,and the head being formed with a perforation. therethrough arranged. tobe brought -rto ahneinent wit 1 the notch when l the closure approachesthe limit of its movenient toward thebase, a resilient flattened. membermounted on the head and extending acrcss the upper end of theperforation, and a locking part located in the perforation for enteringthe notch, the locking part being engaged by said resilient member,substantially as and for the purpose set forth.

4. A grease cup comprising a base, a closure for the base, the closurehavinga head provided with a perforation extending through upper and atone side of axis of the head, a looking part located in the perforationand haiw 111g apor on thereof normally projecting beyond one of saidsurfaces and coactlng with the base, and a resilient disk for yieldingiyforcing the locking part into its nrmal position, said disk beingarranged coaxially with the head and mounted on the other of saidsurfaces, substantially as and for the purpose described.

5. grease cup comprising a base, a closure for the base connectedthereto by screw threads, the base being formed with .a notch, and theclosure having a head formed with a perforation extending through upperand lower surfaces. of the head, the movement of the closure serving tobringthe perforation into alineinent with the notch, a locking partlocated in the perforation and having a portion thereof pro ectlng fromthecontlguous part of the head for entering the notch, and. a resilientdisk arranged c0- axially with the head and mountcd'o'n the uppersurface through which the perforation extends and coat-ting with thelocking part for yieldingly forcing the same into its looking posit-ion.substantially as and. for the purpose set forth.

6. A. grease cup comprising-a base, a'closure for the base connectedthereto by screw threads, the closure having a head ovcrlu ping the edgeof the base and the base being formed with a nolch in said edge, and thehead being formed with a luirfm'ation there through arranged to bebrought into alinement with the notch. when the closure uplower surfacesthereof,"

a scess preaches the limit of its movement toward the base, a resilientdisk mounted on the head and arranged with its margin extending acrossthe upper end of said perforation, the disk being held at its center andhaving its margin free, and a locking part located in the erforation forenter-in said notch the locking part being pressed out of theperforation by the disk, substantially as and for the purpose described.7. A grease cup comprising a base, a closure for the base, the closurehaving a head provided with an upwardly extending annular flange on itsupper surface and with a perforation extending through a lower surfaceof the head and the portion of said upper surface encircled by theflange, a locking part located in the perforation and having a portionthereof normally projecting beyond said lower surface and coasting withthe base, and a resilient disk for yieldingly forcing the locking partinto its normal po sition, said disk being arranged coaxially with thehead and mounted within the flange on the portion of said upper surfaceencircled by the flange, substantially as and for the purpose specified.

8. A grease cup comprising a base, a closure for the base connectedthereto by screw threads, the base being formed with a notch, and theclosure having a head formed with an upwardly extending annular flange,and with a perforation extending through the lower surface of the head,and an upper surface of the head encircled by the flange, the movementof the closure serving to bring the perforation into alinement with thenotch, a locking part located in the perforation and having a portionthereof projecting from the contiguous part of the head for entering thenotch, and a resilient member arranged within the flange and coactingwith the locking part for yieldingly forcing the same into its lockingposition, substantially as and for the purposespecified.

9. A grease cup comprising a base, a closure for the base connectedthereto by screw threads, the closure having a head overlap-" ping theup er edge of the base, the base being formed with a notch in its edgeopposed to the head, and the head being formed with a perforationarranged to come into alinement with the notch as the closure approachesthe limit of its movement toward the base, the head being formed with anupwardly extending annular flange, a spring disk mounted on the head'andarranged within the flange and having its margin extending across theupper end of said per for-ation, the disk being held at its center andhaving its margin free, and a locking part located in the iierforationfor entering the notch, the locking part being pressed out of theperforation by the disk, substantially as and for the purpose specified.

with a perforation extending through the lower surface of the head, andan upper surface of the head encircled by the flange, the movement ofthe closure serving to bring the perforation into alinement with thenotch, a disk having its margin engag i with the upwardly extendingannular flange, a locking part located in the perforation beneath thedisk and having a portion thereof projecting from the contiguous part ofthe head for entering the notch, and a spring member arranged beneaththe disk and within the annular flange and coacting with the lockingpart for yieldingly forcing the same into its locking position,substantially as and for the purpose described.

11. A grease cup comprising a base, a closure for the base connectedthereto by screw threads, the closure having a head overlapping the edgeof the base, the base being ment with the notch as the closure'approaches the limit of its movement toward the base, the head beingalso formedwith an upwardly extending marginal annular flange, theflange being formed with a seat, a disk having its margin resting onsaid seat, and the edge of the flange being spun inwardly on the upperface of such margin into a position opposed. to said seat, and a springpressed locking member mounted in the perforation beneath the disk,substantially as and for thepurpose specified.

12. A grease cup comprising a base, a closure for the base connectedthereto by screw threads, the base being formed with a notch, and theclosure having a head formed with an upwardly extending annular flange,and with a perforation extending through the lower surface of the head,and an upper surface of the head'encircled by the flange, the movementof the closure serving to bring the-perforation into alinement with thenotch, a locking part located in the perforation and having a portionthereof projecting from the contiguous part of the head for entering thenotch, a resilient disk arranged within the flange and coacting with thelocking part for yieldingly forcing the same into its locking position,and a second disk arranged above the resilient disk and having itsmargin coacting with said flange, substantially as and for the purposeset forth.

13. A grease cup comprising a base, a 010- sure for the base connectedthereto by screw threads, the base being formed with a notch, and .aclosure having a headformed with a perforation extending through upperand lower surfaces of the head, the movement of the closure serving tobring the perforation into alinement with the notch, the head be ingalso formed with an opening, a locking part located in the perforationand having a portion thereof projecting from the contiguous part of thehead for entering the notch, a resilient disk mounted on the head andcoacting with the locking part for yieldingly forcing the same into itslooking position, the diskhaving an opening alined with said openingofthe head, a follower movable toward and from the bottom of the base,means for operating the follower including a stem extending through saidopenings of the head and the disk, and means surrounding the stem andbearing against the disk for holding the same in position, substantiallyes and for the purpose described.

14. A grease cup comprising a base in the form of a receptacle, aclosure for the base connected thereto by screw threads, the

closure having a head overlapping the edge of the base, and the basebeing formed with a notch at said edge, the head being also formed witha perforation therethrough arranged to be brought into alineinent withthe notch as the closure approaches the limit of its movement toward thebase, the head being also formed with a central opening, a resilientdisk mounted on the head and arranged with its margin extending acrossthe upper end of said perforation, the disk having a central openingalined with the opening of the head, a follower movable toward and from;the bottom of the base, means for operating the follower including astem extending through the cen tral openings of the head and the disk,means surrounding the stem and bearing against the central portion ofthe disk for holding the disk in position, anda locking part in saidperforation for coacting with the notch and the disk, substantially asand for the purpose set forth.

15. A grease cup comprising a base, a closure for the base connectedthereto by screw threads, the base being formed with a notch, and theclosure having a head formed with an upwardly extending annular flange,and with a perforation extending through a lower surface of the head,and an upper surface of the head encircled by the flange, the movementof the closure serving to bring the perforatipn into alineinent with thenotch, a lockingfpart located in the perforation and having a portionthereof proecting from the contiguous part of the head for entering thenotch, a resilient disl; mounted on sald upper surface of the hea withinthe flange and coacting with the locking part for yieldingly forcing thesame into its locking position, a second disk above the first-mentioneddisk and having margin engaged with. the upwardly extending annularflange, rigid means between the disks, a follower vable toward and fromthe bottom of a base, and a stem extending through th head and the disksand coacting with the follower, said stem being provided with means forpreventing endwise movement thereofv relatively to the head,substantially as and for the purpose set forth. 7 r

16.1% grease cup comprising a base, a closure for the base connectedthereto by screw threads, the closure having a head overlapping the edgeof the base, and the base being formed with a notch. in its edge opposedto the head, the head being formed with a perforation arranged to comeinto alineni ent with the notch as the closure approaches the limit ofits movement toward the base, the head being also formed with a centralopening, and an upwardly extending marginal annular flange forming arecess, the flange being formed with a seat, a resilient disk mounted onthe head in the recess, the disk being arranged with its marginextending across the upper end of said perforation, and being formedwith a central opening alined with the central opening oi":

the head, a second disk of sheet metal hav, -ing its margin resting onsaid seat, said second disk being formed with a central opening alinedwith the central openings in the first-mentioned dish and the head, afollower movable toward and from the bottom of the base, meansforoperat-ingthe follower including a stem extending upwardly throughthe central openings of the head and said disks, the stem having athrust bearing for engaging the inner face of the head and a thrustbearin 0 osed to and spaced apart from the last-mentioned disk, a washerencircling the stem between the disks, and a washer encircling the stembe- .tween the second disk and the last-mentioned thrust bearing,substantially as and for the purpose described 17. A'grease cupcomprising a base, a

closure for the base including a head, a follower movable between thehead and the,

bottom of the base, and being formed with a threaded opening, operatingmeans in cluding a threaded stem held from endwise movement relativelyto the closure and ex tending through the threaded opening of thefollower, and means interposed between the opposing surfaces of theclosure and the follower for preventing turning of the follower Will]the stem, the part having one of said opposing surfaces being providedwith a projecting shoulder for engaging the other opposing surface whenthe follower approaches the limit of its movement toward the head,substantially as and for the purpose specified.

18. A grease cup comprising a base, a closure for the base including ahead, a follower movable between thebottom of the base and said head andbeing formed with a threaded opening, means carried by the closure foroperating the follower, said means including a threaded stem extendingthrough the head and held from endwise movement relatively thereto, thestem extending through ,the threaded opening of the follower, and aconical spiral spring interposed between opposing surfaces of the headand the follower, and the part having one of the opposing surfaces beingprovided with an annular shoulder arranged concentric with the springand being of greater diameter than the largest diameter of the spring,said shoulderrprojecting toward the other opposing surface for engagingthe same and limiting the movement of the follower toward the head,substantially as and for the purpose set forth.

19. A grease cup comprising a base, a closure for the base including ahead, a follower movable between the bottom of the base, and said headand being formed with a threaded opening, means carried by the closure.for operating the follower, said means includinga threaded stemextending through the heady and held from endwise movement relativelythereto, the stem ex tending through the threaded opening of thefollower, and a conical spiral spring interposed between the opposingsurfaces of the head and the follower, the head being formed with anannular shoulder projecting toward the follower, said shoulder being ofgreater diameter than the largest diameter of the spring and arrangedconcentric with the spring, substantially as and for the purposedescribed.

In testimony whereof, I have hereunto signed my name in the presence-oftwo attesting witnesses, at Auburn, in the county of Cayuga, -in-theState of New York, 'this th day of June 1911. a

' GEORGE -W. BOWEN.

Witnesses:

IVA MAE BRADLEY, NEAL W. REMINGTON.

